2,3,3,3-tetrafluoro-2-[1,1,2,3,3,3-hexafluoro-2-(pentafluorophenoxy)propoxy]propionyl fluoride

2,3,3,3-Tetrafluoro-2-[1,1,2,3,3,3-hexafluoro-2-(2,3,4,5,6-pentafluorophenoxy)propyloxy]propanoic acid fluoride